A on-site surveying method for construction project cost

Abstract

The present invention discloses a on-site surveying and mapping method for construction project cost, which relates to the technical field of on-site surveying and mapping. A winding and unwinding component is arranged on the surface of the sleeve. A support ring is also fixedly connected to the upper end of the sleeve. A surveying and mapping component is arranged on the upper end of the support ring. The upper end surface of the universal wheel is rotatably connected to the bottom of the second curved rod. An unfolding and supporting component, a fixing component and a shielding component are also arranged on the sleeve. The unfolding and supporting component is used for unfolding the second curved rod for support. The fixing component is used for extending out the iron rod to fix this surveying and mapping device on the ground. The shielding component is linked with the fixing component and is used for shielding the surveying instrument when moving this surveying and mapping device, solving the problem that during measurement, it may be necessary to move the surveying instrument to conduct surveying and mapping at different locations, but during the moving process, the tripod needs to be disassembled again, thus making the process of moving the surveying instrument very cumbersome and further affecting the progress of engineering surveying and mapping.

Description

Technical Field

[0001] The present invention relates to the technical field of on-site surveying and mapping, and specifically to an on-site surveying and mapping method for construction project cost. Background Technique

[0002] Project cost refers to the construction price of a project, which is the total cost expected or actually required to complete the construction of a project. Defined from the perspective of the owner or investor, project cost refers to the construction cost of the project, that is, the total fixed asset investment cost expected to be paid or actually paid for the construction of a project. These costs mainly include the purchase cost of equipment and tools, the cost of construction engineering and installation engineering, other project construction costs, reserve funds, construction period interest, fixed asset investment direction regulation tax, etc. Defined from the perspective of contract awarding and contracting, project cost refers to the project price, that is, the price of the construction and installation project and the total price of the construction project formed through trading methods such as bidding in the land, equipment, technical labor, contracting and other markets for the completion of a project.

[0003] Before estimating the construction project cost, it is necessary to use an on-site surveying and mapping device for construction project cost to survey the site.

[0004] Before surveying, the tripod needs to be installed, and then the surveying instrument is placed on the tripod for measurement. However, during the measurement, it may be necessary to move the surveying instrument to survey different locations. But during the movement process, the tripod also needs to be disassembled again, which makes the process of moving the surveying instrument very cumbersome, thus affecting the progress of engineering surveying. Summary of the Invention

[0005] The purpose of the present invention is to provide an on-site surveying and mapping method for construction project cost, which solves the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An on-site surveying and mapping method for construction project cost, including the following steps:

[0007] Pre-preparation: Move this surveying and mapping device to the surveying location at the construction site. After determining the surveying location, install this surveying and mapping device.

[0008] Surveying and installation: First, pull up the rotating ring upwards, the clamping block slides on the surface of the sleeve into the second sliding groove, then rotate the rotating ring so that the clamping block slides into the first sliding groove. After that, under the action of the first spring, drive the sliding sleeve to move downwards, further causing the three second curved rods to unfold to support this surveying and mapping device.

[0009] Adjust the surveying position: After support, under the action of the universal wheels, this surveying and mapping device can be pulled to move, so that the center of this surveying and mapping device can be adjusted to the surveying point.

[0010] Fixed surveying and mapping device: Start the motor to move the ladder block upward, thereby driving the second mounting frame upward, opening the two shielding covers, exposing the triangular block, facilitating the installation of the surveying instrument for surveying, and gradually pushing out the inner arc block, so that the center of the inner arc block is offset from the center of the rotating shaft of the second curved rod, so as to push out the iron rod to support the ground and fix the surveying device on the ground;

[0011] Replace the surveying position: When the surveying is completed or the surveying device needs to be moved, reverse the motor, so that the ladder block moves downward, further closing the two shielding covers, and retracting the iron rod into the second curved rod, so that the surveying device can be pulled for movement.

[0012] Optionally, the surveying device includes a sleeve, a winding and unwinding assembly is arranged on the surface of the sleeve, a support ring is fixedly connected to the upper end of the sleeve, and a surveying assembly is arranged on the upper end of the support ring;

[0013] An unfolding and supporting assembly, a fixing assembly and a shielding assembly are further arranged on the sleeve. The unfolding and supporting assembly is used to unfold the second curved rod for support. The fixing assembly is used to extend the iron rod to fix the surveying device on the ground. Linked with the fixing assembly, the shielding assembly is used to shield the surveying instrument when the surveying device is moved.

[0014] Optionally, the winding and unwinding assembly includes:

[0015] A rotating ring, the inner wall of the rotating ring is slidably connected to the outer surface of the sleeve, and a clamping block is fixedly connected to the upper end surface of the rotating ring;

[0016] A first sliding groove is further opened on the outer surface of the sleeve, a second sliding groove is also opened on the surface of the sleeve, the upper end of the first sliding groove is communicated with one end of the second sliding groove, and a third sliding groove is also opened on the surface of the sleeve. The upper end of the third sliding groove is communicated with the end of the second sliding groove far from the first sliding groove, and the surface of the clamping block is slidably connected with the groove wall of the first sliding groove, the groove wall of the second sliding groove and the groove wall of the third sliding groove;

[0017] A first spring, the upper end surface of the first spring is fixedly connected to the lower end surface of the support ring, and the lower end of the first spring is fixedly connected to the upper end surface of the rotating ring.

[0018] Optionally, the unfolding and supporting assembly includes:

[0019] Sliding sleeve, the inner wall of the sliding sleeve is slidably connected to the outer surface of the sleeve, the upper end surface of the sliding sleeve is rotatably connected to the lower end surface of the rotating ring, a first curved rod is connected to the surface of the sliding sleeve, one end of the first curved rod away from the sliding sleeve is hinged to a second curved rod, the upper end surface of the second curved rod is hinged to the surface of the support ring, and a moving component is also rotatably connected to the lower end of the second curved rod.

[0020] Optionally, the moving component includes:

[0021] Universal wheel, the upper end surface of the universal wheel is rotatably connected to the bottom of the second curved rod.

[0022] Optionally, the fixing component includes:

[0023] Threaded rod, a motor is arranged on the inner bottom surface of the sleeve, the output end of the motor is fixedly connected to the lower end surface of the threaded rod, a nut is threadedly connected to the threaded surface of the threaded rod, a chute is also opened on the inner wall of the sleeve, the chute wall is slidably connected to the outer surface of the nut, a first connecting rod is fixedly connected to the upper end surface of the nut, and a trapezoidal block is fixedly connected to the upper end surface of the first connecting rod;

[0024] Inner arc-shaped block, a notch is opened on the upper end surface of the support ring, the notch wall is slidably connected to the side surface of the inner arc-shaped block, the outer side surface of the inner arc-shaped block abuts against the surface of the trapezoidal block, and a limiting frame slidably penetrates through the lower end surface of the inner arc-shaped block, and the lower end surface of the limiting frame is fixedly connected to the notch wall of the upper end surface of the support ring.

[0025] Optionally, the fixing component further includes:

[0026] Fixed ring, the surface of the iron rod slidably penetrates through the surface of the second curved rod, and the iron rod penetrates through the upper surface of the second curved rod and is slidably connected to the inner arc surface of the inner arc-shaped block, the lower end surface of the iron rod is fixedly connected to the inner wall of the fixed ring, a second spring is fixedly connected to the end surface of the fixed ring, one end of the second spring away from the fixed ring is fixedly connected to the lower end of the second curved rod, and the lower end of the iron rod is provided with a pointed tip.

[0027] Optionally, the surveying and mapping component includes:

[0028] Fixed column, the lower end surface of the fixed column is fixedly connected to the upper end surface of the support ring, a triangular block is fixedly connected to the upper end surface of the fixed column, and the upper end surface of the triangular block is clamped and fixed to the lower end surface of the surveying and mapping instrument.

[0029] Optionally, the shielding component includes:

[0030] Mounting frame, the lower side surface of the mounting frame is fixedly connected to the side surface of the triangular block, the upper end surface of the mounting frame is fixedly connected with a mounting ring, the inner wall of the mounting ring is rotatably connected with a rotating rod, and a shielding cover is fixedly connected to the surface of the rotating rod;

[0031] Second mounting frame, the lower end surface of the second mounting frame is fixedly connected to the upper end surface of the trapezoidal block, a straight tooth row is further fixedly connected to the upper end surface of the second mounting frame, the tooth surface of the straight tooth row is meshed with a toothed ring, and the inner wall of the toothed ring is fixedly connected to the surface of the rotating rod;

[0032] There are two shielding covers, and the two shielding covers are respectively arranged on the left and right sides of the surveying instrument.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0034] First, the present invention restricts the clamping block by using the sliding groove three, and the device unfolds the second curved rod by the downward movement of the rotating ring. Therefore, when the surveying device is not in use, the tripod on the surveying device will not loosen. Compared with the traditional way of fixing and restraining with magic tape, this kind of restraining method will not reduce the restraining effect on the tripod on the surveying device due to long-term use, and further improves the practicability and durability of the present surveying device.

[0035] Second, the present invention supports the surveying device by three second curved rods, making the installation of the surveying device more convenient before surveying. And it is linked with the retracting and releasing assembly. Under the elastic force of the first spring, when the rotating ring moves to the lowest end, it is more difficult to move, thereby improving the stability after installing the surveying device. And by arranging universal wheels at the lower end of the second curved rod, the surveying device can still be easily moved after the tripod is unfolded, further improving the practicability of the present surveying device.

[0036] Third, the present invention fixes the surveying device by using the iron rod to contact the ground, thereby improving the stability of the surveying device during surveying, and further improving the accuracy of the surveying of the present surveying device.

[0037] 4. When the straight-tooth row moves upward, it drives the two shielding covers to open, corresponding to the iron rod moving in the direction of contacting the ground. When the straight-tooth row moves downward, it drives the two shielding covers to close, corresponding to the iron rod moving in the direction away from the ground. Thus, the surveying device is enabled to automatically start the motor to automatically fix the surveying device and open the shielding covers during surveying. When moving the surveying device or completing the survey, the motor can be reversed to unlock the surveying device and close the shielding covers at the same time, thereby preventing damage to the surveying instrument during the movement of the surveying device and further improving the safety and convenience of the surveying device during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a flowchart of the on-site surveying method of the present invention;

[0039] Figure 2 is the front view of the structure of the present invention

[0040] Figure 3 is the front view of the outer surface of the sleeve in the present invention;

[0041] Figure 4 in the present invention Figure 3 is an enlarged view of the structure at position A inside;

[0042] Figure 5 is the front view of the structure at three positions of the sliding groove in the present invention;

[0043] Figure 6 is an enlarged view of the structure of the surveying instrument in the present invention;

[0044] Figure 7 is a cross-sectional view of the internal structure of the curved rod two in the present invention;

[0045] Figure 8 in the present invention Figure 7 is an enlarged view of the structure at position B inside;

[0046] Figure 9 is the front view of the internal arc-shaped block structure in the present invention;

[0047] Figure 10 is a side cross-sectional view of the internal structure of the sleeve in the present invention;

[0048] Figure 11 in the present invention Figure 10 is an enlarged view of the structure at position C inside;

[0049] Figure 12 in the present invention Figure 10 is an enlarged view of the structure at position D inside.

[0050] In the figure: 1. Sleeve; 2. Support ring; 3. Surveying instrument; 4. Shield; 5. Second curved rod; 6. First curved rod; 7. Universal wheel; 8. Sliding sleeve; 9. Rotating ring; 10. First spring; 11. Second sliding groove; 12. First sliding groove; 13. Clamping block; 14. Third sliding groove; 15. Iron rod; 16. Inner arc-shaped block; 17. Mounting frame; 18. Rotating rod; 19. Mounting ring; 20. Triangular block; 21. Fixed column; 22. Second spring; 23. Threaded rod; 24. Motor; 25. Limiting frame; 26. First connecting rod; 27. Step block; 28. Second mounting frame; 29. Straight tooth row; 30. Tooth ring; 31. Nut; 32. Chute; 33. Fixed ring. Specific implementation mode

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0052] Embodiment 1, please refer to Figures 1 to 12 , this embodiment provides a on-site surveying method for construction project cost, as follows:

[0053] Move this surveying device to the surveying location at the construction site. After determining the surveying location, install this surveying device;

[0054] First, pull up the rotating ring 9. The clamping block 13 slides on the surface of the sleeve 1 into the second sliding groove 11, and then rotate the rotating ring 9 so that the clamping block 13 slides into the first sliding groove 12. Then, under the action of the first spring 10, drive the sliding sleeve 8 to move downward, further causing the three second curved rods 5 to unfold to support this surveying device;

[0055] After the support, under the action of the universal wheel 7, this surveying device can be pulled to move, so that the center of this surveying device can be adjusted to the surveying point;

[0056] Start the motor 24 to make the step block 27 move upward, thereby driving the second mounting frame 28 to move upward, opening the two shields 4, exposing the triangular block 20, facilitating the installation of the surveying instrument 3 for surveying, and gradually pushing out the inner arc-shaped block 16, so that the center of the inner arc-shaped block 16 is offset from the center of the rotation axis of the second curved rod 5, so as to push out the iron rod 15 to support the ground and fix this surveying device on the ground;

[0057] When the surveying and mapping is completed or the surveying and mapping device needs to be moved, reverse the motor 24, so that the ladder block 27 moves downward, further close the two shielding covers 4, and retract the iron rod 15 into the second curved rod 5, so that the surveying and mapping device can be pulled to move;

[0058] Please refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5 ,This on-site surveying and mapping method for construction project cost uses the following components, including a surveying and mapping device. The surveying and mapping device includes a sleeve 1. A retracting and releasing component is arranged on the surface of the sleeve 1. A support ring 2 is also fixedly connected to the upper end of the sleeve 1. A surveying and mapping component is arranged on the upper end of the support ring 2. The surveying and mapping component includes a fixed column 21. The lower end surface of the fixed column 21 is fixedly connected to the upper end surface of the support ring 2. The upper end surface of the fixed column 21 is fixedly connected to a triangular block 20. The upper end surface of the triangular block 20 is clamped and fixed to the lower end surface of the surveying instrument 3;

[0059] A retracting and releasing component is arranged on the surface of the sleeve 1. The retracting and releasing component includes a rotating ring 9. The inner wall of the rotating ring 9 is slidably connected to the outer surface of the sleeve 1. A clamping block 13 is fixedly connected to the upper end surface of the rotating ring 9;

[0060] A first sliding groove 12 is also opened on the outer surface of the sleeve 1. A second sliding groove 11 is also opened on the surface of the sleeve 1. The upper end of the first sliding groove 12 is communicated with one end of the second sliding groove 11. A third sliding groove 14 is also opened on the surface of the sleeve 1. The upper end of the third sliding groove 14 is communicated with the end of the second sliding groove 11 far from the first sliding groove 12. The surface of the clamping block 13 is slidably connected to the groove wall of the first sliding groove 12, the groove wall of the second sliding groove 11 and the groove wall of the third sliding groove 14;

[0061] A first spring 10. The upper end surface of the first spring 10 is fixedly connected to the lower end surface of the support ring 2. The lower end of the first spring 10 is fixedly connected to the upper end surface of the rotating ring 9.

[0062] In this embodiment, when using this surveying and mapping device, first pull the rotating ring 9 upward, so that the clamping block 13 on the rotating ring slides in the third sliding groove 14. When the clamping block 13 slides to the uppermost end of the third sliding groove 14, rotate the rotating ring 9, thereby driving the clamping block 13 to slide in the second sliding groove 11 until it rotates to the uppermost end of the first sliding groove 12, and then the rotating ring 9 can be released, so that the rotating ring 9 moves downward under the action of the first spring 10 and drives the clamping block 13 to move downward;

[0063] The setting of this retractable component restricts the clamping block 13 by using the sliding groove three 14, and this device unfolds the second curved rod 5 by the downward movement of the rotating ring 9. Therefore, when the surveying and mapping device is not in use, the tripod on the surveying and mapping device will not loosen. Compared with the traditional way of fixing and bundling with magic tape, this bundling method will not reduce the effect of bundling the tripod on the surveying and mapping device due to long-term use, further improving the practicability and durability of this surveying and mapping device.

[0064] Embodiment 2, on the basis of the above embodiment:

[0065] Please refer to Figure 2 and Figure 3 In this embodiment, an unfolding and supporting component is further provided on the sleeve 1. The unfolding and supporting component includes a sliding sleeve 8. The inner wall of the sliding sleeve 8 is slidably connected to the outer surface of the sleeve 1. The upper end surface of the sliding sleeve 8 is rotatably connected to the lower end surface of the rotating ring 9. A first curved rod 6 is connected to the surface of the sliding sleeve 8. One end of the first curved rod 6 away from the sliding sleeve 8 is hinged to a second curved rod 5. The upper end surface of the second curved rod 5 is hinged to the surface of the support ring 2, and a moving component is also rotatably connected to the lower end of the second curved rod 5;

[0066] The moving component includes a universal wheel 7. The upper end surface of the universal wheel 7 is rotatably connected to the bottom of the second curved rod 5. The fixing component includes:

[0067] In this embodiment, when the rotating ring 9 moves downward, it drives the first curved rod 6 to move downward, thereby unfolding the second curved rod 5 to form a support for this surveying and mapping device;

[0068] The setting of this support component supports this surveying and mapping device through three second curved rods 5, making the installation of this surveying and mapping device before surveying more convenient. And it is linked with the retractable component. Under the elastic force of the first spring 10, when the rotating ring 9 moves to the lowest end, it is more difficult to move, thereby improving the stability after installing this surveying and mapping device. And by setting the universal wheel 7 at the lower end of the second curved rod 5, after the tripod of this surveying and mapping device is unfolded, this surveying and mapping device can still be moved conveniently, further improving the practicability of this surveying and mapping device.

[0069] Embodiment 3, on the basis of the above embodiment:

[0070] Please refer to Figure 2 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12, a fixing component is further provided on the sleeve 1, a threaded rod 23, a motor 24 is provided on the inner bottom surface of the sleeve 1, the output end of the motor 24 is fixedly connected to the lower end surface of the threaded rod 23, a nut 31 is threadedly connected to the threaded surface of the threaded rod 23, a chute 32 is further opened on the inner wall of the sleeve 1, the chute wall of the chute 32 is slidably connected to the outer surface of the nut 31, the upper end surface of the nut 31 is fixedly connected to a first connecting rod 26, and the upper end surface of the first connecting rod 26 is fixedly connected to a frustum block 27;

[0071] Inner arc block 16, a notch is opened on the upper end surface of the support ring 2, the notch wall is slidably connected to the side surface of the inner arc block 16, the outer side surface of the inner arc block 16 abuts against the surface of the frustum block 27, and the lower end surface of the inner arc block 16 slidably penetrates through a limit frame 25, and the lower end surface of the limit frame 25 is fixedly connected to the notch wall of the upper end surface of the support ring 2;

[0072] Fixed ring 33, the surface of the iron rod 15 slidably penetrates through the surface of the second curved rod 5, and the iron rod 15 penetrates through the upper surface of the second curved rod 5 and is slidably connected to the inner arc surface of the inner arc block 16, the lower end surface of the iron rod 15 is fixedly connected to the inner wall of the fixed ring 33, the end surface of the fixed ring 33 is fixedly connected to a second spring 22, one end of the second spring 22 away from the fixed ring 33 is fixedly connected to the lower end of the second curved rod 5, and the lower end of the iron rod 15 is provided with a pointed end.

[0073] In this embodiment, by driving the threaded rod 23 to rotate through the motor 24, the rotation of the threaded rod 23 can drive the nut 31 to move up and down, thereby driving the first connecting rod 26 to move up and down, and driving the frustum block 27 to move up and down. Furthermore, after starting the motor 24 of this surveying and mapping device, the following two motion states are achieved:

[0074] First: When the frustum block 27 moves upward, since the transverse diameter of the frustum block 27 is getting larger and larger, during the upward movement of the frustum block 27, it will gradually push the inner arc block 16 to move outward. And since in the original state of the inner arc block 16, the center of the inner arc block 16 is the same as the center of the rotation axis of the second curved rod 5, and the outward movement of the inner arc block 16 will cause the center of the inner arc block 16 to be eccentric with the center of the rotation axis of the second curved rod 5. Further, it will push the iron rod 15 to move, so that the iron rod 15 contacts the ground and fixes this surveying and mapping device;

[0075] Second: When the frustum block 27 moves downward, the transverse diameter of the frustum block 27 is getting smaller and smaller, and under the action of the second spring 22, the upper end of the iron rod 15 will always abut against the inner wall of the inner arc block 16, so that the inner arc block 16 will retract, and the iron rod 15 will also leave the ground;

[0076] The setting of this fixing component fixes this surveying and mapping device by using the iron rod 15 to contact the ground, thereby improving the stability of this surveying and mapping device during surveying and further improving the accuracy of this surveying and mapping device.

[0077] Please refer to Figure 2 、 Figure 5 、 Figure 6 and Figure 9 In this embodiment, a shielding component is further provided on the sleeve 1. The shielding component includes a mounting frame 17 and a second mounting frame 28. The lower side surface of the mounting frame 17 is fixedly connected to the side surface of the triangular block 20. The upper end surface of the mounting frame 17 is fixedly connected with a mounting ring 19. The inner wall of the mounting ring 19 is rotatably connected with a rotating rod 18. A shielding cover 4 is fixedly connected to the surface of the rotating rod 18;

[0078] The lower end surface of the second mounting frame 28 is fixedly connected to the upper end surface of the trapezoidal block 27. A straight tooth row 29 is further fixedly connected to the upper end surface of the second mounting frame 28. The tooth surface of the straight tooth row 29 is meshed with a tooth ring 30. The inner wall of the tooth ring 30 is fixedly connected to the surface of the rotating rod 18;

[0079] There are two shielding covers 4, and the two shielding covers 4 are respectively arranged on the left and right sides of the surveying instrument 3.

[0080] In this embodiment, similarly, the up and down movement of the trapezoidal block 27 drives the up and down movement of the mounting frame 17, further driving the up and down movement of the straight tooth row 29, so that the straight tooth row 29 drives the tooth ring 30 to rotate, and then drives the rotating rod 18 to rotate. When the straight tooth row 29 moves upward, it will drive the two shielding covers 4 to open. When the straight tooth row 29 moves downward, it will drive the two shielding covers 4 to close;

[0081] And when the straight tooth row 29 moves upward, it also corresponds to the iron rod 15 moving in the direction of contacting the ground. When the straight tooth row 29 moves downward, it corresponds to the iron rod 15 moving away from the ground;

[0082] The setting of this shielding component drives the two shielding covers 4 to open when the straight tooth row 29 moves upward, corresponding to the iron rod 15 moving in the direction of contacting the ground. When the straight tooth row 29 moves downward, it drives the two shielding covers 4 to close, corresponding to the iron rod 15 moving away from the ground. Thus, this surveying and mapping device is equipped with automatically starting the motor 24 to automatically fix this surveying and mapping device and open the shielding cover 4 during surveying. When moving this surveying and mapping device or completing the surveying, the motor 24 can be reversed to unlock this surveying and mapping device while closing the shielding cover 4, thereby preventing damage to the surveying instrument 3 during the movement of the surveying and mapping device and further improving the safety and convenience of this surveying and mapping device during the movement process.

[0083] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for on-site surveying and mapping of construction project cost, characterized in that: The surveying and mapping device is used for the surveying and mapping. The surveying and mapping device comprises a sleeve (1). A retractable assembly is arranged on the surface of the sleeve (1). A support ring (2) is fixedly connected to the upper end of the sleeve (1). A surveying and mapping assembly is arranged on the upper end of the support ring (2). The sleeve (1) is also provided with an unfolding support component, a fixing component and a shielding component; The retractable assembly comprises: A rotating ring (9), the inner wall of the rotating ring (9) being slidably connected to the outer surface of the sleeve (1), and the upper end surface of the rotating ring (9) being fixedly connected to a clamping block (13); The outer surface of the sleeve (1) is also provided with a sliding groove 1 (12), the surface of the sleeve (1) is also provided with a sliding groove 2 (11), the upper end of the sliding groove 1 (12) is connected to one end of the sliding groove 2 (11), and the surface of the sleeve (1) is also provided with a sliding groove 3 (14), the upper end of the sliding groove 3 (14) is connected to one end of the sliding groove 2 (11) away from the sliding groove 1 (12), and the surface of the clamping block (13) is slidably connected with the groove wall of the sliding groove 1 (12), the groove wall of the sliding groove 2 (11) and the groove wall of the sliding groove 3 (14); Spring 1 (10), the upper end surface of the spring 1 (10) being fixedly connected to the lower end surface of the support ring (2), and the lower end of the spring 1 (10) being fixedly connected to the upper end surface of the rotating ring (9); The deployment support assembly comprises: A sliding sleeve (8), wherein the inner wall of the sliding sleeve (8) is slidably connected to the outer surface of the sleeve (1), the upper end surface of the sliding sleeve (8) is rotatably connected to the lower end surface of the rotating ring (9), a curved rod 1 (6) is hingedly connected to the surface of the sliding sleeve (8), a curved rod 2 (5) is hingedly connected to the end of the curved rod 1 (6) away from the sliding sleeve (8), the upper end surface of the curved rod 2 (5) is hingedly connected to the surface of the support ring (2), and the lower end of the curved rod 2 (5) is also rotatably connected to a moving component; The fixing assembly comprises: A threaded rod (23), the inner bottom surface of the sleeve (1) is provided with a motor (24), the output end of the motor (24) is fixedly connected to the lower end surface of the threaded rod (23), the threaded surface of the threaded rod (23) is threadedly connected to a nut (31), the inner wall of the sleeve (1) is also provided with a slide groove (32), the groove wall of the slide groove (32) is slidably connected to the outer surface of the nut (31), the upper end surface of the nut (31) is fixedly connected to a connecting rod 1 (26), and the upper end surface of the connecting rod 1 (26) is fixedly connected to a ladder block (27); An inner arc block (16), the upper end surface of the support ring (2) is provided with a notch, the groove wall of the notch is slidably connected to the side surface of the inner arc block (16), the outer side surface of the inner arc block (16) is in contact with the surface of the step block (27), and the lower end surface of the inner arc block (16) slides through the limiting frame (25), and the lower end surface of the limiting frame (25) is fixedly connected to the groove wall of the notch provided on the upper end surface of the support ring (2); The moving assembly comprises a universal wheel (7), the upper end surface of the universal wheel (7) being rotatably connected to the bottom of the second curved rod (5); The surveying and mapping component includes: A fixed column (21), the lower end surface of the fixed column (21) being fixedly connected to the upper end surface of the support ring (2), the upper end surface of the fixed column (21) being fixedly connected to a triangular block (20), the upper end surface of the triangular block (20) being snap-fitted and fixed to the lower end surface of the surveying instrument (3); The shielding component comprises: A mounting frame (17), wherein the side surface of the lower end of the mounting frame (17) is fixedly connected to the side surface of the triangular block (20), the upper end surface of the mounting frame (17) is fixedly connected to a mounting ring (19), the inner wall of the mounting ring (19) is rotatably connected to a rotating rod (18), and the surface of the rotating rod (18) is fixedly connected to a shielding cover (4); A second mounting frame (28), wherein the lower end surface of the second mounting frame (28) is fixedly connected to the upper end surface of the ladder block (27), and the upper end surface of the second mounting frame (28) is also fixedly connected to a spur gear row (29), the tooth surface of the spur gear row (29) is meshingly connected to a gear ring (30), and the inner wall of the gear ring (30) is fixedly connected to the surface of the rotating rod (18); Two shielding covers (4) are provided, and the two shielding covers (4) are respectively provided on the left and right sides of the surveying instrument (3); The following steps are involved: S1: Pre-preparation, moving the surveying device to the surveying location on the construction site; S2: Surveying and mapping installation, first pull the rotating ring (9) upwards, the clamping block (13) slides on the surface of the sleeve (1) into the sliding groove (11), and then rotate the rotating ring (9) to make the clamping block (13) slide into the sliding groove (12), and then under the action of the spring (10), the sliding sleeve (8) is driven to move downward, so that the three curved rods (5) are unfolded to support the surveying and mapping device; S3: adjusting the surveying position, pulling the surveying device to move under the action of the universal wheel (7), and driving the center of the surveying device to adjust to the surveying point; S4: Fix the surveying device, start the motor (24), drive the ladder block (27) to move upward, drive the second mounting frame (28) to move upward, and open the two shielding covers (4); S5: changing the surveying position. After the surveying is completed, the motor (24) is reversed to move the ladder block (27) downward to close the two shielding covers (4).

2. A method for on-site surveying and mapping of construction project cost according to claim 1, characterized in that: The fixing assembly further comprises a fixing ring (33) and an iron rod (15), the surface of the iron rod (15) slidingly penetrates the surface of the second curved rod (5), and the upper end surface of the iron rod (15) penetrates the second curved rod (5) and is slidably connected to the inner arc surface of the inner arc block (16), the lower end surface of the iron rod (15) is fixedly connected to the inner wall of the fixing ring (33), and the end surface of the fixing ring (33) is fixedly connected to the second spring (22); In step S4, while the triangular block (20) is being released, the inner arc block (16) is gradually pushed out, so that the center of the inner arc block (16) is offset from the center of the second curved rod (5) at the rotation axis, so that the iron rod (15) is pushed out to support the ground.

3. A method for on-site surveying and mapping of construction project cost according to claim 2, characterized in that: One end of the second spring (22) away from the fixing ring (33) is fixedly connected to the lower end of the second curved rod (5), and the lower end of the iron rod (15) is set as a pointed end.

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